.header {
    height: 150px;
    position: relative;
    position: sticky;
    top: -80px;
    background: white;
    z-index: 2;
}

.header img {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 40px;
}

.header .nav {
    position: absolute;
    bottom: 23px;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
}

.header .nav li {
    float: left;
    margin-right: 50px;
}

.header .nav li:nth-of-type(1) {
    margin-left: 33px;
}

.header .nav li:hover {
    color: gray;
}

.header .header-list {
    position: absolute;
    right: 12px;
    top: 15px;
}

.header .header-list li {
    float: left;
    margin-right: 10px;
    cursor: pointer;
}

.header .header-list li span {
    font-size: 22px;
}

.center {
    height: 495px;
    background: #f3f3f3;
    border-top: 1px solid rgb(238, 235, 235);
}

.center .center-content {
    width: 800px;
    height: 495px;
    margin: auto;
}

.center .center-content .center-left {
    width: 375px;
    height: 250px;
    background: white;
    float: left;
    text-align: center;
    padding-top: 50px;
}

.center .center-content .center-right {
    width: 420px;
    height: 470px;
    float: right;
    text-align: center;
    padding: 50px 30px;
    background: white;
}

.center-content .center-left p:nth-of-type(1) {
    width: 258px;
    margin-left: 60px;
    margin-top: 18px;
    color: #757575;
}

.center-content .center-left p:nth-of-type(2) {
    width: 300px;
    height: 40px;
    cursor: pointer;
    background: black;
    line-height: 40px;
    color: white;
    margin-left: 36px;
    margin-top: 20px;
}

.center .center-content .center-right span:nth-of-type(1) {
    float: left;
    cursor: pointer;
    margin-left: 80px;
    margin-top: 20px;
    color: black;
    border-bottom: 1px solid black;
}

.center-content .center-right span:nth-of-type(2) {
    display: inline-block;
    margin-top: 20px;
    cursor: pointer;
    color: #757575;
}

.center .center-content .center-right .pass:hover {
    color: black;
    border-bottom: 1px solid black;
    padding-bottom: 3px;
    display: inline-block;
}

.center .center-content .center-right .code:hover {
    color: black;
    border-bottom: 1px solid black;
    padding-bottom: 3px;
    display: inline-block;
}

.center .center-content .center-right input:nth-of-type(1),
.center .center-content .center-right input:nth-of-type(2) {
    width: 260px;
    height: 36px;
    margin-top: 12px;
}

.center .center-content .center-right input:nth-of-type(2) {
    margin-bottom: 20px;
}

.center .center-content .center-right span:nth-of-type(4) {
    margin-left: 35px;
    border-bottom: 1px solid black;
    cursor: pointer;
}

.center .center-content .center-right p:nth-of-type(2) {
    width: 300px;
    height: 40px;
    background: black;
    line-height: 40px;
    color: white;
    margin-top: 40px;
    margin-left: 32px;
    margin-bottom: 20px;
    cursor: pointer;
}

.center .center-content .center-right .line1 {
    display: inline-block;
    width: 80px;
    border-bottom: 1px solid #cdcdcd;
}

.center .center-content .center-right .line2 {
    display: inline-block;
    width: 80px;
    border-bottom: 1px solid #cdcdcd;
}

.center .center-content .center-right .wei {
    margin-top: 30px;
    width: 30px;
    height: 25px;
    cursor: pointer;
}

.center .center-content .hide {
    width: 420px;
    height: 490px;
    float: right;
    text-align: center;
    padding: 50px 30px;
    background: white;
    display: none;
}

.center .center-content .hide span:nth-of-type(1) {
    float: left;
    cursor: pointer;
    margin-left: 80px;
    margin-top: 20px;
    color: #757575;
}

.center .center-content .hide span:nth-of-type(2) {
    display: inline-block;
    margin-top: 20px;
    cursor: pointer;
    color: #757575;
}

.center .center-content .hide .pass:hover {
    color: black;
    border-bottom: 1px solid black;
    padding-bottom: 3px;
    display: inline-block;
}

.center .center-content .hide .code:hover {
    color: black;
    border-bottom: 1px solid black;
    padding-bottom: 3px;
    display: inline-block;
}

.center .center-content .hide input:nth-of-type(1) {
    width: 260px;
    height: 36px;
    margin-top: 10px;
}

.center .center-content .hide input:nth-of-type(3),
.center .center-content .hide input:nth-of-type(2) {
    width: 150px;
    height: 36px;
    margin-top: 12px;
}

.center .center-content .hide .yanzhengma {
    width: 106px;
    height: 35px;
}

.center .center-content .hide input:nth-of-type(3) {
    margin-bottom: 15px;
    margin-left: 8px;
    margin-right: 3px;
}

.center .center-content .hide .send {
    display: inline-block;
    cursor: pointer;
    border-bottom: 1px solid black;
}

.center .center-content .hide .state {
    margin-left: -145px;
    margin-right: 6px;
}

.center .center-content .hide .load {
    width: 300px;
    height: 40px;
    background: black;
    line-height: 40px;
    color: white;
    margin-top: 40px;
    margin-left: 32px;
    margin-bottom: 20px;
    cursor: pointer;
}

.center .center-content .hide .line1 {
    display: inline-block;
    width: 80px;
    border-bottom: 1px solid #cdcdcd;
}

.center .center-content .hide .line2 {
    display: inline-block;
    width: 80px;
    border-bottom: 1px solid #cdcdcd;
}

.center .center-content .hide .weixin {
    margin-top: 30px;
    width: 30px;
    height: 25px;
    cursor: pointer;
}

.footer {
    height: 530px;
    border-top: 1px solid rgb(211, 210, 210);
}

.footer .footer-content {
    height: 420px;
    width: 1120px;
    margin: auto;
}

.footer-top ul img {
    width: 90px;
    height: 90px;
}

.footer-content .footer-top ul {
    float: left;
    margin-top: 95px;
    margin-right: 78px;
}

.footer-content .footer-top ul li {
    font-size: 14px;
    margin-bottom: 15px;
}

.footer-content .footer-top ul li:nth-of-type(1) {
    font-weight: bold;
    margin-bottom: 40px;
}

.footer-content .footer-top ul:nth-of-type(4) li:nth-of-type(4) {
    margin-top: 10px;
}

.footer-content .footer-top ul:nth-of-type(5) {
    margin-right: 0;
    margin-left: 50px;
}

.footer-top ul:nth-of-type(5) li:nth-of-type(4),
.footer-top ul:nth-of-type(5) li:nth-of-type(5) {
    font-size: 13px;
    color: #919090;
}

.footer-content .footer-top ul:nth-of-type(5) li:nth-of-type(5) {
    margin-top: -10px;
}

.footer-content .footer-top ul:nth-of-type(5) li:nth-of-type(6) {
    width: 200px;
    height: 48px;
    background: black;
    color: white;
    cursor: pointer;
    text-align: center;
    line-height: 48px;
    margin-top: 50px;
}

.footer-content .footer-top ul:nth-of-type(5) li:nth-of-type(6) u {
    text-decoration: underline;
}

.footer .footer-bottom {
    height: 110px;
    width: 1120px;
    margin: auto;
    text-align: center;
    font-size: 13px;
    color: gray;
}

.footer .footer-bottom img {
    width: 18px;
    height: 18px;
}

.footer .footer-bottom p:nth-of-type(2) {
    margin-bottom: 6px;
}

.fix {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    position: fixed;
    bottom: 120px;
    right: 26px;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.9);
}

.fix span {
    display: block;
    font-size: 25px;
    color: white;
    text-align: center;
    line-height: 35px;
}

#box1 {
    width: 100%;
    height: 400px;
    border-top: 2px solid gray;
    position: relative;
    display: none;
    left: 0;
    top: 70px;
    z-index: 3;
    position: sticky;
    background: white;
}

.box1-content {
    width: 900px;
    position: absolute;
    left: 50%;
    height: 450px;
    transform: translateX(-50%);
}

.box1-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 23px;
}

.box1-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box1 .box1-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box1 img {
    width: 300px;
    height: 180px;
    position: absolute;
    left: 50%;
    transform: translateX(-60%);
    bottom: 60px;
}

#box2 {
    position: relative;
    height: 300px;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 3;
}

#box2 .box2-content {
    height: 300px;
    position: absolute;
    width: 1100px;
    left: 50%;
    transform: translateX(-50%);
}

#box2 .box2-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 60px;
}

#box2 .box2-content ul:nth-of-type(1) {
    margin-left: 65px;
}

#box2 .box2-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box2 .box2-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box3 {
    position: relative;
    height: 250px;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 3;
}

.box3-content {
    position: absolute;
    height: 250px;
    width: 1000px;
    left: 50%;
    transform: translateX(-50%);
}

#box3 .box3-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 67px;
}

#box3 .box3-content ul:nth-of-type(1) {
    margin-left: 100px;
}

#box3 .box3-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box3 .box3-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box4 {
    height: 280px;
    position: relative;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 3;
}

#box4 .box4-content {
    position: absolute;
    height: 280px;
    width: 1100px;
    left: 50%;
    transform: translateX(-50%);
}

#box4 .box4-content ul {
    float: left;
    margin-top: 30px;
    margin-right: 60px;
}

#box4 .box4-content ul:nth-of-type(1) {
    margin-left: 170px;
}

#box4 .box4-content ul li {
    color: #757575;
    padding-bottom: 7px;
}

#box4 .box4-content ul li:nth-of-type(1) {
    color: black;
    padding-bottom: 15px;
}

#box4 .box4-content img {
    width: 170px;
    height: 220px;
    margin-top: 30px;
    margin-right: 2px;
}

#box5 {
    height: 280px;
    position: relative;
    border-top: 2px solid gray;
    display: none;
    position: sticky;
    top: 70px;
    background: white;
    z-index: 3;
}

#box5 .box5-content {
    height: 280px;
    width: 1000px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    overflow: hidden;
}

#box5 .box5-content .txt {
    width: 200px;
    height: 70px;
    margin-top: 30px;
    margin-left: 200px;
}

#box5 .box5-content .txt span {
    margin-right: 50px;
    display: inline-block;
}

#box5 .box5-content img {
    width: 335px;
    height: 220px;
    margin-right: 250px;
    margin-top: -70px;
    float: right;
}